Our last WDW trip (1 week in a 2-bdrm BCV) was unavoidably interrupted by one night (right in the middle of the week) in a BWV Grand Villa. A major change in the # of travelers had us trying to move everything to a 2BDRM, but we couldn't get out the the Grand Villa for that once night! Arrrgh!).
Rule #1 (which we realized going into it) is: don't intentionally swap room on consecurtive nights. It's a bad idea.
We knew that we'd have to essentially live out of a suitcase while at the BWV, and we weren't sure how to go about swapping a fridge full of stuff, but we knew Disney would take care of us. We just resolved to take it in stride. And that's how it would have gone, had reality of unexpected illness not set in.
(OK, here's the "long story", which goes WAY OT. But it's a story of Disney WORKING THEIR MAGIC in bad circumstances, so maybe it's worth the read...)
Reality set in: room swaps go horribly wrong if people in your party are sick. While we were there, 4 of us got sick (4 different illnesses... remember, there are a lot of families who drag sick people to long-planned vacations, so it's easy to get sick down there).
Sure, under normal circumstances, on room swap day, you entrust your bags to Disney, go to the parks, and check in at the new room later in the day. That doesn't work when you're as sick as can be. On the morning of the first room swap, one of our group couldn't leave the safety of a bathroom. That night, two others were sick with high fevers.
We coped as well as could be expected, thanks to Disney. It was President's Day week, BCV and BWV were both at full capacity (literally) on those days, so theu simply couldn't let us to stay in our room while the next room was being prepared. But Disney pulled a rabbit out its magic hat anyway.
It was the night before the first move that we realized we were going to be in a predicament, so I called the 'front desk', and eventually spoke to Laurie, a Guest Services Manager at Y&BC. With no BCVs or BWVs available for us to crash in , she found us a courtesy room in the BC hotel for the afternoon. The next day, we had added two to our list of (barely) walking wounded. Laurie saw us doing an early check-in at the BCV, and asked how we were doing (since we were still hours from getting into our room). She didn't say, 'would you like me to help you again today?' She just walked off and came back minutes later with a key to a Concierge floor room, telling us to please use any of the services provided on that floor, including juice and/or snacks from the lounge, etc.
By the first day, I'd requested Laurie's boss's contact info, so I could share our family's appreciation of her great service. She said that was unnecessary - she was "just doing her job". See, for us, the Disney experience is still magical. It's typical, I find, that Disney cast members feel that going above and beyond the call of duty IS "just doing their job". (After returning home, I didwrite a letter to her boss, and received a very nice follow up phone call.)
Does Disney make mid-vacation room swaps easy? Yes, they do. Will we do them again? Not by choice! There are a lot of things outside of your control in a vacation, so things that go well "on paper" don't ALWAYS go well "in practice"!